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| Section | Weight | Objectives |
|---|---|---|
| Advanced Addressing and Routing Solutions | 25% | - Determine IPv6 migration strategy - Create stable, secure, and scalable routing designs for Layer 3 - Create structured addressing designs |
| Advanced Enterprise Campus Networks | 25% | - Design Layer 2 and Layer 3 campus networks - Design campus network services (QoS, multicast, etc.) - Design for high availability |
| WAN for Enterprise Networks | 20% | - Design WAN connectivity - Design SD-WAN solution - Design QoS for WAN |
| Enterprise Campus Security | 20% | - Design network security - Design network access control |
| Services | 10% | - Design network management - Design end-to-end QoS policy |
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NEW QUESTION # 167
Refer to the exhibit.
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?
Answer: B
NEW QUESTION # 168
An engineer is designing an enterprise campus network. The LAN infrastructure consists of switches from multiple vendors, and Spanning Tree must be used as a Layer 2 loop prevention mechanism. All configured VLANs must be grouped in two SIP instances. Which standards-based Spanning Tree technology supports this design solution?
Answer: B
NEW QUESTION # 169
An engineer must design a routing solution for a company that is single-homed to an ISP. The company ' s goal is to run BGP between the CE and the PE devices. To support running BGP, the company obtained a public AS number and IP subnet from ARIN. Which solution must the engineer select?
Answer: B
Explanation:
A single-homed enterprise that runs BGP with one ISP should advertise its assigned public prefix to the ISP and receive a default route from the ISP. Because there is only one upstream provider, the customer does not need the full Internet table to make path-selection decisions; all Internet destinations exit the same provider path. Receiving only a default route conserves memory and CPU on the CE router and simplifies operations.
The customer must still originate its public prefix toward the ISP so the provider can advertise reachability to the Internet. The ISP should not be the originator of the customer-owned ARIN prefix toward the customer; it may advertise that prefix to the Internet after receiving it from the customer. Requesting the full BGP table or even a partial table adds unnecessary scale for a single-homed site. Advertising a default route to the ISP is also wrong because the ISP already owns upstream Internet reachability. Reference topics: single-homed BGP, CE-PE peering, default route, public prefix advertisement, Internet edge design.
NEW QUESTION # 170
Refer to the exhibit. An architect must create a stable and scalable EIGRP solution for a customer. The design must:
- conserve bandwidth, memory, and CPU processing
- prevent suboptimal routing
- avoid any unnecessary queries
Which two solutions must the architect select? (Choose two.)
Answer: A,E
Explanation:
The EIGRP stub routing feature provides four advantages when implemented in hub-and-spoke networks;
* It prevents sub-optimal routing from occurring within hub-and-spoke EIGRP networks
* It prevents stub routers with low-speed links from being used as transit routers
* It eliminates EIGRP Query storms, allowing the EIGRP network to convergence faster
* It reduces the required amount of configuration commands on the stub routers
NEW QUESTION # 171
An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same router levels for each protocol per interface. Which IS-IS design is required?
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/xe-3s/irs-xe-3s-book/ip6-route-isis-xe.html#GUID-04990BCF-8228-459E-AFAA-9FAF1E2136E9 For single-topology IS-IS IPv6, routers must be configured to run the same set of address families. IS-IS performs consistency checks on hello packets and will reject hello packets that do not have the same set of configured address families. For example, a router running IS-IS for both IPv4 and IPv6 will not form an adjacency with a router running IS-IS for IPv4 or IPv6 only. In order to allow adjacency to be formed in mismatched address-families network, the adjacency-check command in IPv6 address family configuration mode must be disabled.
NEW QUESTION # 172
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